CN203021345U - Device for fine treatment of water produced by thin interbed low-permeability oilfield adopting ceramic membrane - Google Patents
Device for fine treatment of water produced by thin interbed low-permeability oilfield adopting ceramic membrane Download PDFInfo
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- CN203021345U CN203021345U CN 201220528478 CN201220528478U CN203021345U CN 203021345 U CN203021345 U CN 203021345U CN 201220528478 CN201220528478 CN 201220528478 CN 201220528478 U CN201220528478 U CN 201220528478U CN 203021345 U CN203021345 U CN 203021345U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 239000000919 ceramic Substances 0.000 title claims abstract description 86
- 239000012528 membrane Substances 0.000 title claims abstract description 43
- 239000010865 sewage Substances 0.000 claims abstract description 31
- 239000002699 waste material Substances 0.000 claims description 60
- 230000035699 permeability Effects 0.000 claims description 19
- 239000003513 alkali Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 14
- 230000001702 transmitter Effects 0.000 claims description 9
- 238000005554 pickling Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 2
- 230000000630 rising Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 20
- 239000007787 solid Substances 0.000 abstract description 11
- 238000001914 filtration Methods 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 229920002521 Macromolecule Polymers 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 3
- 239000008213 purified water Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 description 15
- 230000004907 flux Effects 0.000 description 14
- 239000002351 wastewater Substances 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000001264 neutralization Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 101700072563 POT1 Proteins 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003750 conditioning Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses a device for fine treatment of water produced by a thin interbed low-permeability oilfield adopting a ceramic membrane. Sewage containing oil produced by the thin interbed low-permeability oilfield is conveyed to an oil sewage tank; the sewage containing oil is lifted to enter into a ceramic membrane assembly filter through a circulating pump; the sewage containing oil produced by the thin interbed low-permeability oilfield is processed by the ceramic membrane assembly filter in parallel or in series; the ceramic membrane assembly filter adopts a cross flow filtering mode; the sewage containing oil flows at high speed on the surface of an inner side membrane of a membrane tube under the drive of pressure; the sewage containing oil is purified through the ceramic membrane layer along the direction vertical to the ceramic membrane layer; the purified water is input into a sewage injection system; macromolecular substances or solid particles are intercepted by the membrane, return to the oil sewage tank under rinsing of the sewage containing oil flowing at the high speed, and enter the ceramic membrane assembly filter again to begin the next filter process after being mixed with the newly added sewage containing oil; the purified water yield is further increased; and the sewage injection system continues to convey the injected water containing A1 level of water.
Description
Technical field
The utility model relates to a kind of device of ceramic membrane fine processing thin interbed low permeability oil field recovered water, specifically be exactly Ceramic Membranes Separating Technique is applied to the recovered water fine processing of thin interbed low permeability oil field, guarantee to stablize after produced water disposal that thin interbed LOW PERMEABILITY OILFIELD DEVELOPMENT process produces and reach A1 level re-injection index.
Background technology
At present, water conditioning after domestic low-permeability oilfield produced-water reinjection treatment technology will be guaranteed to process reaches A1 level water quality standard, be oleaginousness≤5.0mg/L, suspended solids content≤1.0 mg/L, suspended solids median particle size≤1.0 μ m, average corrosion rate＜0.076mm/a, but in fact do not reach the water quality standard of A1 level, the minority water technology also can only reach the water quality standard of A2 level.Owing to lacking for the little hypotonic block treatment unit on the spot that breaks, the recovered water of hyposmosis block usually pipe is transmitted back to hypotonic block re-injection after transporting to the sewage plant processing again, this mode has not only increased energy consumption, and easily causes the secondary pollution along Cheng Shuizhi, makes well head water quality still be difficult to up to standard.The utility model develops for the problems referred to above, and purpose is the treatment effect that further promotes thin interbed low permeability oil field recovered water, improves the waterflooding recovery ratio of thin interbed low permeability oil field.
Summary of the invention
The purpose of this utility model is to provide a kind of device of ceramic membrane fine processing thin interbed low permeability oil field recovered water, overcomes the deficiency that above-mentioned oil field prior art exists.For adapting to the processing requirements of different quality, carry out surface modification, preferably ceramic membrane pore size, rationally adopt the series and parallel mode of ceramic film component by the core processing unit-ceramic membrane to device, improve processing efficiency, guaranteed effluent quality, reduced processing cost, widened the range of application of device.
The technical solution of the utility model is achieved in the following ways:
A kind of device of ceramic membrane fine processing thin interbed low permeability oil field recovered water, that the device of implementing ceramic membrane fine processing thin interbed low permeability oil field recovered water mainly is comprised of former water pot, washwater tank, alkali liquid tank, acid solution tank, ceramic film component, under meter, recycle pump, residual sea water pump, stirrer, electrically operated valve and sled piece, it is characterized in that the rear top surface of prizing piece is provided with oily(waste)water tank and the ceramic film component strainer that is provided with serial flow in parallel, is provided with washwater tank, alkali liquid tank and the acid solution tank of word order on the front end face of sled piece; The import of oily(waste)water tank is connected with the oily(waste)water water pipeline, outlet is connected with the import with pressure transmitter of ceramic film component strainer respectively with under meter by recycle pump, the filter afterpurification water out of ceramic film component strainer is by being connected with the produced-water reinjection system after pressure transmitter and electrically operated valve parallel connection, ceramic film component strainer filter is lower as to be connected with oily(waste)water tank backflow import after the sewage outlet parallel connection, oily(waste)water tank sewage draining exit is connected with residual sea water pump, and the residual sea water pump outlet is connected with contaminated-oil basin beyond the sled piece; Be connected with pump inlet after washwater tank, alkali liquid tank and the outlet of acid solution tank are in parallel, above-mentioned three tank backflow imports are connected with rising pipe after sewage outlet parallel connection under the ceramic film component strainer is filtered by electrically operated valve and under meter; The pressure transmitter of the oily(waste)water import of the control circuit of recycle pump and residual sea water pump, ceramic film component strainer is connected with the PLC housing with the pressure sensor signal circuit of filter treated water outlet and all electrically operated valve control circuits.
The ceramic film component filter body is made as round shape, and the oily(waste)water import is located at the middle part, top, and after filter, water out is located at the middle and lower part of cylinder, and sewage outlet is located at middle part, the end; The oily(waste)water import of oily(waste)water tank is located at the tank top, and oily(waste)water outlet and blowdown export and be located at the tank bottom, and refluxing opening is located at the tank top; The outlet of washwater tank, alkali liquid tank and pickling tank is located at the tank bottom, and the backflow import is located at the tank top.
Principle of work:
thin interbed low permeability oil field extraction oily(waste)water is sent in the oily(waste)water tank, by recycle pump, the oily(waste)water lifting is entered in the ceramic film component strainer again, require in parallel the use or series connection use ceramic film component filter process thin interbed low permeability oil field extraction oily(waste)water according to influent quality and water outlet, the ceramic film component strainer adopts the mode of cross flow filter, oily(waste)water is in the inboard film surface flow at high speed of film pipe under pressure-driven, oily(waste)water generates along the vertical direction permeation ceramic membrane layer with ceramic film and purifies, input produced-water reinjection system will purify waste water, macromolecular substance or solid particulate tunicle are held back, under washing away, swiftly flowing oily(waste)water comes back in the oily(waste)water tank, with reenter the ceramic film component strainer after the oily(waste)water that newly adds mixes and begin filtration procedure next time, further increase the productive rate of purifying waste water, meet the re-injection water that contains A1 level water quality for continuous conveying of produced-water reinjection system.
Ceramic film component be through film for three times, three sintering modifications and make cylindrically, evenly be provided with from top to bottom vertical core, it is nanometer level microporous that each vertical core periphery is provided with, " hydrophilic and oleophobic " performance of intensified ceramic film improves water flux; Ceramic membrane employing high speed multi-stream road filtration system reduces oil droplet and suspended solids and concentrates the probability that anchors at the film surface, accelerates the separation of oil, water, solid particulate, increases the productive rate of purifying waste water.
Adopt series-parallel connection ceramic film component filter cleaning water unit, increase the productive rate of purifying waste water, reduce the quantity discharged of sewage; When pottery membrane flux drops to a certain degree, need the sewage of emptying oil-containing water pot, add new oily(waste)water to process, to improve membrane flux; And be reduced to can not process oily(waste)water the time when membrane flux, even when blowdown can not make flux recovery, make it to recover by the ceramic film component strainer being carried out the cyclic chemical clean-out system.
The utility model is not subjected to the impact of water water quality, can be applicable to arbitrary process section of sewage plant, and the recovered water that also can be applicable to outlying, little fault block low-permeability oilfield is processed on the spot, and all can guarantee to process rear effluent quality and reach A1 level index request.The utility model can make the oil field reinjection water processing technological flow greatly shorten, and occupation area of equipment reduces, through measuring and calculating, 1000m
3The sewage disposal scale of/d can be saved one-time investment 300～4,000,000 yuan; In addition, the utility model belongs to pure physical filtering, need not add any chemical agent in the middle of filtration procedure, do not produce oily sludge, and from traditional method, oil and suspended substance are separated and process differently, this technology can be with suspended substance and the disposable removal of sump oil, through measuring and calculating, 1000m
3The sewage disposal scale of/d can save working cost approximately 800,000/year.
After this technology implementation, can guarantee that the stable water outlet after oily water treatment reaches A1 level injectivity index, satisfy the development requirement of thin interbed low permeability oil field, improve the recovery ratio of thin interbed low permeability oil field, promote the long term stable production volume increase of thin interbed low permeability oil field.
Description of drawings
Fig. 1-ceramic membrane filter schematic flow sheet;
1-oily(waste)water tank in figure, 2,3-ceramic film component strainer, 4, the 5-under meter, 6-recycle pump 7,8,9,10,11-pressure transmitter, 12,13,14,15,16,17,18,19,20,21, the 22-electrically operated valve, 23-residual sea water pump;
Fig. 2-ceramic membrane cleaning process schematic diagram;
In figure 2,3-ceramic film component strainer, 4, the 5-under meter, the 6-recycle pump, 7,8,9,10, the 11-pressure transmitter, 13,14,15,16,18,19,20,21,22,27,28,29,30,31,32, the 33-electrically operated valve, the 24-washwater tank, 25-alkali liquid tank, 26-acid solution tank.
Fig. 3-unit layout figure;
1-oily(waste)water tank in figure, 2,3-ceramic film component strainer, 4,5-under meter, the 6-recycle pump, 7,8,9,10, the 11-pressure transmitter, 12,13,14,15,16,17,18,19,20,21,22,27,28,29,30,31,32,33, the 34-electrically operated valve, the 24-washwater tank, the 25-alkali liquid tank, 26-acid solution tank.
Embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
a kind of method of ceramic membrane fine processing thin interbed low permeability oil field recovered water as shown in Figure 3, it is characterized in that thin interbed low permeability oil field extraction oily(waste)water is sent in the oily(waste)water tank, by recycle pump, the oily(waste)water lifting is entered in the ceramic film component strainer again, require in parallel the use or series connection use ceramic film component filter process thin interbed low permeability oil field extraction oily(waste)water according to influent quality and effluent quality, the ceramic film component strainer adopts the mode of cross flow filter, oily(waste)water is in the inboard film surface flow at high speed of film pipe under pressure-driven, oily(waste)water enters the produced-water reinjection system along generating to purify waste water with the vertical direction permeation ceramic membrane layer of ceramic film, macromolecular substance or solid particulate tunicle are held back, under washing away, swiftly flowing oily(waste)water comes back in the oily(waste)water tank, with enter again the ceramic film component strainer after the oily(waste)water that newly adds mixes and begin filtration procedure next time, further increase the productive rate of purifying waste water, meet the re-injection water that contains A1 level water quality for continuous conveying of produced-water reinjection system.
Referring to Fig. 1, before oily water treatment, close emptying motorized valve 12 and the ceramic film component strainer emptying motorized valve 22 of former water pot 1, detect oily(waste)water tank 1 interior oily(waste)water water quality, to determine ceramic film component strainer 2,3 membrane pore size and operation scheme.if influent quality is good, for improving the treatment capacity of device, ceramic film component strainer 2, 3 can adopt the mode of parallel running, open electrically operated valve 13 this moment, 14, 15, 16, 18, 19, 20, 21, 34, close electrically operated valve 17, oily(waste)water passes through at a high speed ceramic film component strainer 2 under the effect of recycle pump, 3, the liquid permeation ceramic membrane layer of small-molecule substance filters to become and purifies waste water by electrically operated valve 16, 19, 21 enter the produced-water reinjection system that is connected with this device, macromolecular substance or solid particulate tunicle are held back, under washing away, swiftly flowing oily(waste)water comes back in the oily(waste)water tank by ceramic film component filter bottom outlet electrically operated valve 18 and electrically operated valve 20, make fluid reach the purpose of separating concentrated and purifying, if influent quality is relatively poor, for guaranteeing the effluent quality of device, ceramic film component strainer 2, 3 can adopt the mode of series operation, ceramic film component strainer 2 can adopt the larger film in aperture simultaneously, and ceramic film component strainer 3 can adopt the film of aperture less, open electrically operated valve 13 this moment, 14, 16, 17, 19, 20, 21, 34, close electrically operated valve 15, 18, oily(waste)water passes through at a high speed ceramic film component strainer 2 and ceramic film component strainer 3 successively under the effect of recycle pump, the liquid permeation ceramic membrane layer of small-molecule substance filters to become and purifies waste water by electrically operated valve 16, 19, 21 enter the produced-water reinjection flow process that is connected with this device, macromolecular substance or solid particulate tunicle are held back, under washing away, swiftly flowing oily(waste)water comes back in the oily(waste)water tank by electrically operated valve 18 and electrically operated valve 20.Under meter 4 and under meter 5 measure respectively the flooding quantity of ceramic film component strainer and the sewage backflow amount under filter, with the producing water ratio by PLC housing calculating device.
When pottery membrane flux drops to a certain degree, need the sewage of emptying oily(waste)water tank 1 for again improving membrane flux, should close electrically operated valve 13 this moment, opens electrically operated valve 12, and the sewage of oily(waste)water tank discharges under the effect of residual sea water pump 23 to be put in the sewage reception contaminated-oil basin that is connected with this device; After oily(waste)water tank 1 is emptying, close electrically operated valve 12, then add again new oily(waste)water to process to carry out the processing of next stage in oily(waste)water tank 1.
Referring to Fig. 2, when membrane flux is reduced to a certain degree, even when blowdown can not make membrane flux recover, must carry out matting and make it to recover, matting generally is divided into rinsing, alkali cleaning and pickling three parts.Before matting, need to open electrically operated valve 18,22 with residual oily(waste)water in emptying ceramic film component strainer 2 and ceramic film component strainer 3, close afterwards ceramic film component strainer 2 and ceramic film component strainer 3 electrically operated valves 16,19,21, beginning ceramic film component cleaning filter flow process.Ceramic film component strainer matting step is as follows:
1. washing: close emptying electrically operated valve 33, add clear water in washwater tank 24, close electrically operated valve 22,28,29,30,31, open electrically operated valve 13,14,18,20,27,32, clear water is further removed the oily(waste)water raffinate in the ceramic film component strainer carry out wash cycles under the effect of recycle pump 6 in the ceramic film component strainer;
2. alkali cleaning: add NaOH solution in alkali liquid tank 25, close electrically operated valve 22,27,29,30,32, open electrically operated valve 13,14,18,20,28,31, alkaline solution is carrying out the circulation alkali liquor cleaning in the ceramic film component strainer under the effect of recycle pump 6;
3. washing: the residual alkali lye after alkali cleaning in emptying ceramic film component strainer 2 and ceramic film component strainer 3, then 1. repeating step, rinses to rinse water as neutral, emptying;
4. pickling: add HNO in acid solution tank 26
3Solution is closed electrically operated valve 22,27,28,31,32, opens electrically operated valve 13,14,18,20,29,30, and acid solution cleans in the acid solution that circulates in the ceramic film component strainer under the effect of recycle pump 6;
5. washing: the residual acid solution after pickling in emptying ceramic film component strainer 2 and ceramic film component strainer 3, then 1. repeating step, rinses to rinse water as neutral, emptying;
6. emptying: open electrically operated valve 33,27,28,29, the waste liquid in emptying washwater tank 24, alkali liquid tank 25, acid solution tank 26 is to the waste collection tank that is connected with this device successively.Carrying out step 5. the time, test record clear water membrane flux if reach the original membrane flux, stops cleaning; If do not reach the original membrane flux, repeat above operation, until flux recovery.
Embodiment
The utility model has carried out rig-site utilization at the hot sewage plant of Shengli Oil Field and Fan family's sedimentation station, and unit capacity is 200m
3/ d, adopting the aperture is the ceramic membrane membrane module strainer of 50nm, with the two-stage series connection operation scheme, advance oily(waste)water oleaginousness 200mg/L～300mg/L, concentration of suspension 30 mg/L～50mg/L, stable water outlet has reached A1 level water quality (average oleaginousness=0.3mg/L, average suspended solids content=0.58mg/L, average suspended solids median particle size=0.928 μ m, average corrosion rate＜0.076mm/a) after device is processed.
This device is in operational process, and average every operation 20h need arrange the lower sewage of filter once, and the lower quantity of wastewater effluent of filter is about and contains
Oily water is processed 2 ‰ of total amount; Every operation needed matting once in 28 days～30 days, after matting, membrane flux can 100% recovers, 3 ‰ of the not enough oily water treatment total amount of total water consumption, the acid, the alkali wasteliquid that produce are about 1 ‰ of oily water treatment total amount, can enter this device after neutralization and again process.
Claims (2)
1. the device of a ceramic membrane fine processing thin interbed low permeability oil field recovered water, mainly formed by sled piece, former water pot, washwater tank, alkali liquid tank, acid solution tank, ceramic film component, under meter, recycle pump, residual sea water pump, stirrer, electrically operated valve and sled piece, it is characterized in that the rear top surface of prizing piece is provided with oily(waste)water tank and the ceramic film component strainer that is provided with serial flow in parallel, is provided with washwater tank, alkali liquid tank and the acid solution tank of word order on the front end face of sled piece; The import of oily(waste)water tank is connected with the oily(waste)water water pipeline, outlet is connected with the import with pressure transmitter of ceramic film component strainer respectively with under meter by recycle pump, the filter afterpurification water out of ceramic film component strainer is by being connected with the produced-water reinjection system after pressure transmitter and electrically operated valve parallel connection, ceramic film component strainer filter is lower as to be connected with oily(waste)water tank backflow import after the sewage outlet parallel connection, oily(waste)water tank sewage draining exit is connected with residual sea water pump, and the residual sea water pump outlet is connected with contaminated-oil basin beyond the sled piece; Be connected with pump inlet after washwater tank, alkali liquid tank and the outlet of acid solution tank are in parallel, above-mentioned three tank backflow imports are connected with rising pipe after sewage outlet parallel connection under the ceramic film component strainer is filtered by electrically operated valve and under meter; The pressure transmitter of the oily(waste)water import of the control circuit of recycle pump and residual sea water pump, ceramic film component strainer is connected with the PLC housing with the pressure sensor signal circuit of filter treated water outlet and all electrically operated valve control circuits.
2. the device of ceramic membrane fine processing thin interbed low permeability oil field recovered water according to claim 1, it is characterized in that: the ceramic film component filter body is made as round shape, the oily(waste)water import is located at the middle part, top, and after filter, water out is located at the middle and lower part of cylinder, and sewage outlet is located at middle part, the end; The oily(waste)water import of oily(waste)water tank is located at the tank top, and oily(waste)water outlet and blowdown export and be located at the tank bottom, and refluxing opening is located at the tank top; The outlet of washwater tank, alkali liquid tank and pickling tank is located at the tank bottom, and the backflow import is located at the tank top.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528478 CN203021345U (en) | 2012-10-16 | 2012-10-16 | Device for fine treatment of water produced by thin interbed low-permeability oilfield adopting ceramic membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528478 CN203021345U (en) | 2012-10-16 | 2012-10-16 | Device for fine treatment of water produced by thin interbed low-permeability oilfield adopting ceramic membrane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801197A (en) * | 2014-02-28 | 2014-05-21 | 中核（天津）机械有限公司 | Automatic medicine washing equipment for water treatment system |
| CN104528974A (en) * | 2014-12-16 | 2015-04-22 | 成都昊特新能源技术股份有限公司 | Oil removal process for quality improving sewage of coal |
| CN104556454A (en) * | 2015-01-09 | 2015-04-29 | 上海安赐机械设备有限公司 | Treatment device and treatment process of oilfield produced water as reinjection water |
| CN108169419A (en) * | 2017-12-15 | 2018-06-15 | 浙江海洋大学 | It is a kind of to test device and the experimental method that water seal cave depot reinjected water influences cave depot |
-
2012
- 2012-10-16 CN CN 201220528478 patent/CN203021345U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801197A (en) * | 2014-02-28 | 2014-05-21 | 中核（天津）机械有限公司 | Automatic medicine washing equipment for water treatment system |
| CN104528974A (en) * | 2014-12-16 | 2015-04-22 | 成都昊特新能源技术股份有限公司 | Oil removal process for quality improving sewage of coal |
| CN104556454A (en) * | 2015-01-09 | 2015-04-29 | 上海安赐机械设备有限公司 | Treatment device and treatment process of oilfield produced water as reinjection water |
| CN108169419A (en) * | 2017-12-15 | 2018-06-15 | 浙江海洋大学 | It is a kind of to test device and the experimental method that water seal cave depot reinjected water influences cave depot |
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| TR01 | Transfer of patent right |
Effective date of registration: 20151013 Address after: 100728 No. 22 North Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Shandong Sairui Petroleum Science & Technology Development Co., Ltd. Address before: 100025 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Shengli Oilfield Shengli Engineering & Consulting Co., Ltd. Patentee before: Shandong Sairui Petroleum Science & Technology Development Co., Ltd. |
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Granted publication date: 20130626 Termination date: 20191016 |
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